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This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A134232 A007318 * M, where M = triangle in which row n consists of n-1 zeros followed by 2n-1, n+1.

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%I A134232 #6 Mar 25 2022 00:36:19
%S A134232 1,2,2,3,7,3,4,15,14,4,5,26,38,23,5,6,40,80,75,34,6,7,57,145,185,129,
%T A134232 47,7,8,77,238,385,364,203,62,8,0,9,100,364,714,854,644,300,79,9,10,
%U A134232 126,528,1218,1764,1680,1056,423,98,10
%N A134232 A007318 * M, where M = triangle in which row n consists of n-1 zeros followed by 2n-1, n+1.
%C A134232 Row sums = A048474: (1, 4, 13, 37, 97, 241, 577, ...).
%F A134232 Binomial transform of an infinite lower triangular matrix with rows = (n-1) zeros followed by (2n-1), (n+1). A007318 * an infinite lower triangular matrix with (1,2,3,...) in the main diagonal, (1,3,5,...) in the subdiagonal and the rest zeros.
%e A134232 First few rows of the triangle:
%e A134232   1;
%e A134232   2,  2;
%e A134232   3,  7,   3;
%e A134232   4, 15,  14,   4;
%e A134232   5, 26,  38,  23,   5;
%e A134232   6, 40,  80,  75,  34,  6;
%e A134232   7, 57, 145, 185, 129, 47, 7;
%e A134232   ...
%Y A134232 Cf. A048474.
%K A134232 nonn,tabl
%O A134232 0,2
%A A134232 _Gary W. Adamson_, Oct 14 2007